Yeah it has been tried before as jmz said, in various different guises, some "established" artists have done guest mixes etc in the past etc etc & our own finest doing mixes/interviews/reviews etc, I just don't think previously it was given the attention/exposure it needed...
Its probs a good look, just the platform to broadcast technically would be the key imo, i'm pretty sure technical issues in the sense of people being able to broadcast smoothly from home etc was a massive hitch/hold back before...
I could be wrong...
I know its dnbforum, but personally with the boundaries becoming evermore blurred & people not so obsessed with sticking to one genre musically & in terms of influences etc, I would like to see a multi-genre platform for it, broaden the target audience & break up any potential monotony.
You have to look to things like the mixlr's that are done on here as indication to the kind of response you're going to receive though, with the utmost respect in the world, the forum "hardcore" as it were do mixlr's & everybody makes as much effort as pos to tune in & advertise it in waffle if they're broadcasting, there was a thread in general back in the day too... But the traffic on the whole was/is very minimal... I think you would have to do something on a large scale promotionally across the site & externally to generate any sort of established station/audience if thats the sort of thing you're looking for...
My 2 cents anyway...